Winter storm brings dangerous conditions to millions of Americans

Tens of millions of Americans are facing weather warnings across the United States, from sub-zero temperatures to vicious storms.

Approximately 95 million Americans may experience frigid conditions, with temperatures below zero reaching as far south as northern Texas.

On Sunday, the National Weather Service warned of wind chills dropping to as low as negative 50 degrees Fahrenheit below zero from Montana across the western Dakotas.

Meanwhile, life is on the line as firefighters risk their lives to save a man from rising flood waters in Pennsylvania.

"But we could feel it was cold. It was strong. We had a rope set up. It was tethered to the tree so that we could hang on to that as we were going out," Robert McLaughlin, captain of the Middletown Fire Company, said.

Relentless rains are unleashing catastrophic flooding across the northeast.